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Some of the images in the animation at top right are taken from pages that are properly attributed on one of the pages of the sister website http://www.structural-geology-portal.com/. | |||
Structural Geology Students, Download "Folds
and Folding" ebook from THIS page !
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Please download by clicking the image at bottom left, the install zipped file or MSI file. You are free to distribute this ebook to as many as possible. There is no restriction on the usage but proper attribution is solicited if reproducing in electronic or published form. Thank you very much indeed ! This series by the author is an attempt towards reviving interest in the fascinating facets of the earth sciences ! The links for runtime VB5 and VB6 are given in case some of the setup programs do not have VB bootstrap files. | ||||||
Click the image above to download in Format 1 [12.4 MB (13,080,846 bytes)]. Below is the screenshot of the book cover in format 2. Click to download ebook in format 2. |
To the left is the
classic photograph which has not only been reproduced a myriad times by
structural geologists the world over, they have also looked forward to
similar patterns in their own field areas. This is the photograph that
Prof John Graham Ramsay,
FRS, took in 1956 in the Loch Monar
area of the famous Caledonian Scottish Highlands. The superimposition of
this type, as well known to all, results when the hinges and axial
surfaces are both folded about the axes of late folds. A typical
"mushroom" would however result when the hinges of early folds are folded
about axes and axial surfaces of late folds that nearly lie transverse or
subperpendicular to them. Below is a map of pattern covering an enormous
area (25 by 18 km) in the early Proterozoic Aravalli mobile belt in
western India. The map* (done up in 1936 and called HAMMER-HEAD syncline)
is reproduced after Dr A M
Heron of Geological Survey of India
(who passed away in 1964 in transit on way to New Delhi to attend
the International Geological Congress).
*later mapped in great details by Late Prof K Naha, FNA and his students (see bottom in this column). Click this image to begin download in Format 2. Immediately below is the screenshot of page 56 of the book which describes the aspects of noncylindrical folds.
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| Listed above are some free sites by the author. Please visit and send a feeback to me. Your comments will help us improve the future editions | Prakash P Roday* | ||||||
| Department of Applied Geology | |||||||
| Dr H S Gour University | |||||||
| SAGAR 470 003, MP, India | |||||||
| pproday@sancharnt.in; pproday@yahoo.com | |||||||
| Tel 91 07582 264836 Cell 91+9425425729 | |||||||
| *Address from Jan 2008 onwards: "The Recluse", 7 Vastu Vihar, Khajuri Kalan Road, Piplani, Bhopal 462 021, India | |||||||
| Vasudhaiva Kutumbakam ! ( The whole world is but one family !- in Sanskrit from Rigveda) | |
| Earth, mother of all, hail ! |
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